Ink Pen demands quality, because aesthetic appeal is not the only concern, make and durability set market standards. Invisible Ink Pen by CONCEPTEK, LLC Private Limited are developed with finest quality raw material sourced from most renowned suppliers. Being the most reliable Ink Pen Manufacturer and Retailer we hold a reputable image, owing to a satisfied consumer base and a legal entity operating under Have Own Export License.We take pride in setting a benchmark with first in class kitchen products delivered straight away from our production facility headquartered in San Diego, California, United States. Generating yearly revenue estimating around Below US$1 Million, based on Australia,Canada,Germany,Thailand,United Kingdom export market ratio and export value crossing Above US$100 Million. CONCEPTEK, LLC was first introduced with initial business capital estimating US$1 Million, back in 2010. Now holding successful export history of around 10 Years .